 <div>
    <div id="ID_div">
            <span class="leftSide">
              <strong>Nro. de Documento</strong>:   
              <span class="red">*</span>
            </span>
            <input type="text" id="numero_de_documento" name="numero_de_documento" class="rightSide" maxlength="10" onkeyup="checkNumeric(this);">
            <br><br>
          </div>
    <div id="password_div">
            <span class="leftSide">
              <strong>Contraseña</strong>:          
              <span class="red">*</span>
            </span> 
            <input type="password" id="password" name="password" class="rightSide">
            <br><br>
          </div>

          <div id="user">
            <a  href="#" style="font-size:80%; text-decoration:underline;" onclick="forgotPassword()">Olvide mi contraseña</a>
            <span></span>
            <a  href="#" style="font-size:80%; text-decoration:underline;" onclick="createUser()">¿No estas registrado?</a><br><br>
          </div>
          
          <div id="buttons" style="text-align: center">
            <input type="button" id="postulate_button" value="Postularse" class="button" onclick="postularse()"      style="margin-right:  3%">
          </div>
       </div>